摘要:
Specific zeolite particles retaining therein a metal ion having a bactericidal activity are packed and retained in a mixed fiber assembly composed of low-melting thermoplastic synthetic fibers and ordinary fibers. The zeolite particles are retained by welding of the low-temperature thermoplastic synthetic fibers but in a state of allowing the contact thereof with an external fluid. The particle-packed fiber article has an excellent and durable antibacterial activity and can be used in various fields.
摘要:
A denture cleansing composition of the hypochlorite type is rendered substantially free of hypochlorite chlorine odour by incorporating into the composition a hypochlorite deactivator. The deactivator is released into the cleansing solution at a controlled rate to optimize cleansing efficacy at a reduced hypochloriteichlorine odour. The deactivators suitable for use in this invention include sodium perborate monohydrate and sodium nitrite. The preferred method of controlling deactivator release rate is by encapsulating the deactivator.
摘要:
An assembly (16) for inhibiting microbial growth in collected body fluid includes a reservoir for collecting the fluid, and a tablet (10, 26) in the reservoir, which tablet dissolves in the collected fluid to produce hydrogen peroxide in an amount sufficient to inhibit microbial growth in the collected fluid. The tablet is partially coated with an insoluble coating (14) which leaves a portion of the tablet uncoated to provide a constant surface area exposed to the collected body fluid, which surface area is of a size to provide sufficient hydrogen peroxide for inhibition of microbial growth.
摘要:
57 A decontaminating composition to be used, for example, for preserving medical preparations, in stomatal pouches, in latrines or animal sheds. The composition has the form of a powder or an aqueous solution and contains, as the active main constituent, a hydroxymethane sulphonic acid salt, preferably the sodium salt of hydroxymethane sulphonic acid. Preferably, the pulverulent composition comprises hydroxymethane sulphonic acid salt only, whereas the aqueous composition which preferably contains about 20-40 % by weight of an active main constituent, may also comprise optional additives, such as 0.001-1 % by weight of a surface tension depressor which preferably is a cetyl pyridinium chloride, and about 1-10 % by weight of iron or zinc salt for binding hydrogen sulphide. The preferred iron and zinc salts are iron sulphate and zinc chloride, respectively.
摘要:
A method for treating a biological or pharmaceutical product to inactivate viruses and pyrogens therein comprising the steps of adsorbing said product onto a solid phase; treating the adsorbed product with a virus or pyrogen inactivating agent; separating the solid phase and quantitatively removing the residual inactivating agent therefrom; and recovering said product.
摘要:
The present invention relates to insoluble compositions, which are capable of removing metal (e.g. selectively) from solution (e.g. Fe 3+ from a liquid nutrient medium so as to lower the Fe 3+ content to less than 0.1 µM); the insoluble compositions comprise: a suitable insoluble carrier and organic co-ordinating sites covalently fixed to the surface of said carrier, said co-ordinating sites being capable of chelating Fe 3+ , Th 4+ and/or UO 2 2+ .